Devotec Industries, from the UK, presents a portable solar charge, which may be the world’s smallest. The portable solar charger has built-in 1800mAh battery. You can charge the battery by solar for about 12 hours or by USB/AC for 4 hours.
The tiny charge comes with tips for most cellphones and even PSP:
Supplied with tips for: Nokia old, Nokia new/N series, Sony Ericsson, Motorola/Blackberry/mini USB and Samsung phones as well as a DC 5V tip for PSPs and many digital cameras, an Ipod tip, and one for female USB, you have plenty of connection and expansion options to keep all your products charged.
This solar charger is priced at 19.99 Pounds.